Empty/removed widgets have padding and border

[flying-sheep]

tqdm_notebook(leave=False) leaves HTML like

<div class="p-Widget p-Panel jp-OutputArea-child">
    <div class="p-Widget jp-OutputPrompt jp-OutputArea-prompt"></div>
    <div class="p-Widget p-Panel p-mod-hidden jp-OutputArea-output"></div>
</div>

And while the latter child div ishidden, the former retains space. Would it be possible to add CSS like:

.jp-OutputArea-child > .p-Widget.jp-OutputPrompt.jp-OutputArea-prompt {
    --jp-border-width: 0;
    --jp-code-padding: 0;
}

[flying-sheep]

hello? anyone here?

[vidartf]

Sorry that no one picked this up. Do you think this issue is related to what you are describing? #1845

[flying-sheep]

ah, looks like it! thank you